Home / 318,841,406,427.43-478,602,454,687.61-137,413,774,249.45

Finding the Fourth Proportional to 318,841,406,427.43, 478,602,454,687.61 and 137,413,774,249.45

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Solution

The fourth proportional to 318,841,406,427.43, 478,602,454,687.61 and 137,413,774,249.45 is: 206,267,342,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,841,406,427.43 : 478,602,454,687.61 = 137,413,774,249.45 : x
  2. Step 2: Convert to fraction form
    318,841,406,427.43/478,602,454,687.61 = 137,413,774,249.45/x
  3. Step 3: Cross multiply
    318,841,406,427.43x = 478,602,454,687.61 × 137,413,774,249.45
  4. Step 4: Simplify right side
    318,841,406,427.43x = 65,766,569,663,675,861,303,296
  5. Step 5: Solve for x
    x = 65,766,569,663,675,861,303,296/318,841,406,427.43
  6. Step 6: Final answer
    x = 206,267,342,753.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.